Swivel



FIG. 1 is a front perspective view of a swivel, showing my new design;

FIG. 2 is a front elevation view;

FIG. 3 is a rear elevation view;

FIG. 4 is a left side elevational view, the right side elevation being a mirror image thereof;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view. 

The ornamental design for a swivel, as shown and described. 